Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kb5 draw
3 Kc5 draw
4 Kc7 draw
5 Kd5 draw
6 Ra4 draw
7 Rb5 draw
8 Rb6 draw
9 Rb7 draw
10 Rd4 draw
11 Kb6 loss in 4 half-moves
12 Kd6 loss in 4 half-moves
13 Kd7 loss in 4 half-moves
14 Rc4 loss in 4 half-moves
15 Kb7 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Rf4 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rh4 loss in 2 half-moves